Don’t miss the fun and excitement of the 15th annual MO’ Cowbell Race on November 8, 2026! Four events to choose from on Sunday morning: Marathon, Half-Marathon, 10K, or 5K. Flat & fast courses, perfect for beginners or those who want to set a new personal best!
| Registration Dates | Full | Half | 10K | 5K |
|---|---|---|---|---|
| February | $90 | $75 | $59 | $44 |
| March – April | $112 | $90 | $73 | $50 |
| May – July | $117 | $95 | $78 | $56 |
| August – September | $122 | $100 | $83 | $61 |
| October | $127 | $112 | $90 | $67 |
| ExMO’ | $132 | $122 | $96 | $75 |
Can’t make it to MO’Cowbell, the flattest and fastest race in the St. Louis region? We will miss you but you can still be part of the fun! Sign up today as a Virtual Runner
| Virtual Runner (Medal) | Virtual Runner (Medal & Shirt) |
|---|---|
| $35 | $55 |
Terms & Conditions
Sale and/or transfer of race entries/bib numbers is strictly prohibited. All entry fees are non-refundable. Registration may be deferred toward a future event with MO’ Cowbell approval prior to race day. Contact us directly at info@mocowbellmarathon.com.
Race officials may cancel, delay or change the event in case of extreme weather or other conditions that may affect the safety and health of the participants. In the event of race cancellation, refunds will not be issued. Sale and/or transfer of race entries/bib numbers is strictly prohibited.


